Latency requirement between NAD and PSN for Device administration deployment

[dngore]

Hi,

Customer wants to deploy device administration solution. They have offices in various part of world. DC & DR will be in India. 

As per understanding, ISE nodes requires max 300ms latency between them. But what is latency requirement between NAD and TACACS+ PSN? If there is no such requirement then can PSN placed in India DC serves the aaa requests coming from US or Europe locations?

Will that be feasible?

[Surendra · Accepted solution]

Yes you can. By default, a TACACS server request timeout on the network device would be 5 seconds. If the response from the ISE from wherever the world it is in is less than 5 seconds, you can very well do so.